Cap construction for sugar-mills



G. ENGEL, SR. CAP CONSTRUCTION FOR SUGAR MILLS.

Patented July 5, 1921.

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INVZIPR ATTORNEY To all whom it may concern:

UNITED STATES PATENT OFFICE.

GODFREY ENGEL, $3., OF BROOKLYN, NEW YORK.

CA]? CONSTRUCTION FOR SUGAR-MILLS.

Specification of Letters Patent.

Patented July 5, 1921.

Application filed. November 3,' 1919." Serial No. 335,301.

' for Sugar-Millspof which the following is a specification. m Y

My present invention relates partlcularly to sugar mills and aims to improve the cap construction of the mill housing so as to facilitate the removal of the device employed for applying pressure to the pressure roll.

Heretofore it has been the practice in certain mills of this character to construct the housing with an opening at the side through which the pressure device may be wlthdrawn for purposes of repair and the llke. This is an unhandy and somewhat dangerous pro cedure, as the parts of the pressure device are of substantial and heavy construction and it is difficult to support them properly while they are being shifted laterally out of their seats in the housing.

In my invention the housing is so constructed that the crane or lifting tackle may be directly applied to the pressure device and so that the pressure device may be d rectly lifted out of the top of the housing.

The novel features of construction by which this is made possible will be clear from the following specification, taken in conjunction with the drawing, wherein I have shown the invention embodied in a concrete and practical form.

In this drawing, Figure 1 is a vertical sectional view of a sugar mill, with parts which are unnecessary to illustrate the invention broken away.

Fig. 2 is a sectional view'taken on substantially the plane of line 22 of Fig. 1.

Fig. 3 is a plan view of the cap construction.

The pressure roll is designated 10, the same being shown as cooperating with the lower rolls 11 and 12 in the usual way.

These rolls are journaled in a suitable housing 13, shown provided with a sepa rately formed cap piece 14, held in place by.

the tie-bolts 15, which extend down through the housing at opposite sides of the journal 16 of the pressure roll.

This cap is constructed, in the present disclosure with an opening 17 in the top thereof of. sutficient size to permit the removal of the-pressure device. The pressure device shown is of the conventional type embodymg a piston 18 and a cylinder 19 arranged to exert pressure upon the bearing member 20 of the pressure roll. 7

Means are provided whereby the lifting tackle may be readily applied to the parts of the pressuredevice, such means being herein shown simply in the form of the s'crewseats 21 and 22 to take suitable-lifting devices, such as eye-bolts or the like.

The pressure device is held seated in operative position in the housing by a locking plate or bar 23, serving both as a closure for the opening in the housing and as a thrust member for taking the upward thrust of the pressure device. This so-called locking plate is shown as removably secured in position by means of the integrally formed outstanding keys 241, which slide in corresponding key-ways 25 formed in the opposite side walls of the opening or seat 17.

It will be apparent with this construction that when it is necessary or desirable to remove one of the pressure devices, it is simply necessary to slide out the locking plate in a plane substantially parallel to the axis of the roll and then by attaching the lifting gear to the parts of the pressure device, said parts may be easily lifted directly out through the top of the housing. The looking plate is made of suflicient strength to take the thrust of the pressure device and the tie-bolts at opposite sides of the open-.

ing in the cap piece, firmly brace the same and overcome any spreading tendency.

What I claim is:

1. In a mill of the character described, the combination of rolls, a housing in which said rolls are journaled, an expansible pressure device seated in said housing and comprising a movable cylinder exerting pressure on one of the rolls, and a relatively stationary piston in said cylinder, said hous ing having an opening in the peripheral portion thereof through which the piston may first be removed from the cylinder and the cylinder be then lifted away from the roll and a thrust block removably secured in the housing over the piston and thereby releasably securing the pressure device in the housing.

2. In a mill of the character described, the combination of crushing rolls, a housing in which said rolls are journaled, an expansible pressure device seated in said h0using and exerting pressure on one of the rolls, said housing having an opening directly 1n,

the peripheral portion thereof through. which 7 the pressure device may be lifted in a plane substantially at right angles to the axis of the roll and a thrust block slidably keyed inthe the top of the housing and a thrust block,

for'rsaid pressure device slidably engaged in the-opening in' the top of the housing.

7 4:.xII 1wa mill ofthe character described,-

crushing rolls, ahousing in which said rolls are journaled, said housing having an open ing in the top thereof 'over the journal of one of the-rolls, said opening having key- Ways in'theopposit'e side Walls of the same extending substantially parallel to the axis of the roll, a thrust block'closingsaid open? ing. and having keys slidably engagedv in said'key-ways and a pressure device seated in the opening and interposed between th'e thrust block andthej-journal of" the roll,

said pressure device being directly remov-.. able through the opening in the top of the housing. upon the removal-of the sliding. thrust block aforesaid. r In- Witness whereof Lher'eunto set my hand, this 31st day of October, l919.;'

Y GODFREY ENG EL,sR.

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